Herbert j



H. J. HOPE.

METHOD OF mama FILE Fmamcsr APPLICATION F iLED. DEC-7. 19!?- Patented Oct. 28,

lnvenim. Herberrr J. Hope;

by WA MHW ATM/g.

UN SATES HERBERT J. HOPE, OF SANFORD, MAINE.

METHOD OF MAKING PILE FABRICS.

Application filed December 7, 1917.

To all whom it may concern:

Be it known that I, HERBERT J. Horn, a citizen of the United States, residing at Sanford, county of York, State of Maine, have invented an Improvement in Methods of Making Pile Fabrics, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to a method of producing a pile fabric and has for its object to provide a novel method by which a pile fabric having a relatively long pile can be produced.

In carrying out my improved method I first make a pile fabric having pile loops in any suitable or usual way and then I out certain of the loops and draw out some at least of the loops adjacent cut loops thereby to withdraw from the body of the fabric one of the ends of each of said out loops. This produces a long pile which has a length equal to the sum of the lengths of both legs of the uncut loop and one leg of the cut loop.

By means of my invention it is possible to produce a pile fabric with a long pile which resembles very closely the fur of various animalsf A pile fabric embodying my invention is suitable for use in the manufacture of imitation fur robes, imitation fur garments, etc.

In order to'give an understanding of my invention, I have illustrated in the drawings more 01' less diagrammatically the steps involved in the invention.

Figure l is a diagrammatic view showing a portion of a pile fabric having pile loops formed therein and also showing one way in which the long loops may be produced;

Fig. 2 is a section on the line 22, Fig. 1;

Fig. 3 is a section similar to Fig. 2, but showing certain of the loops cut;

Fig. 4. is a similar section showing the uncut loops drawn out to produce the long pile.

In carrying out my invention I first form in any usual way a pile fabric having pile loops, and said pile loops may be formed from either pile warp threads or from filling threads. In Fig. 1 I have shown diagrammatically a pile fabric having pile loops formed from pile warp threads. In said figure the body warp threads of the fabric are indicated at 1 and the pile warp threads at 2 and 3. The weft or Specification of Letters Patent.

Patented Oct. 28, 1919.

Serial No. 205,921.

filling threads of the fabric are indicated at 4, and eachof the pile warp threads 2 and 3 has pile loops formed therefrom, as usual in pile fabrics, these loops being bound in by the filling threads 4: in usual manner. The pile loops which are thus formed from the pile warp threads are indicated at 5 and 6, respectively, and in carrying out my invention, I will preferably so manipulate each pile warp thread that the pile loops will be formed therein in pairs. This is the construction shown in Fig. 1 wherein the pile loops of each pair are indicated at 5 and 6, respectively. The pile loops of each pair will preferably be situated closely adjacent each other and are illustrated as separated by a single filling thread a. The adjacent pairs of pile loops that are formed from a single pile warp thread are separated somewhat so that said pile warp thread is bound into the fabric between the pairs of loops by several filling threads. After the pile fabric has been thus made, certain of the pile loops, preferably one pile loop of each pair of loops, are cut. For instance, Figs. 1 and 2 show the pile fabric formed with the pile loops, the loops of each pile warp thread being arranged in pairs. In Fig. 3 the loops 5 of each pair have been cut, thus producing from each loop 5 two ends 7 and 8 which form the legs of the loop. If after the loops 5 have thus been cut any loop 6 is pulled out, this operation will result in withdrawing the end 7 of the adjacent cut loop 5 from the body of the fabric thereby to produce a pile end 9 shown in Fig. 4 which has a length equal to the combined length of the two legs 10 and 11 of the loop 6 and the leg 7 of the loop 5. Since the pairs of loops of each pile warp are separated from each other, it will be observed that the portion of each warp thread between the loop 6 of one pair and the loop 5 of the next adjacent pair will be bound into the fabric by several filling threads. The portion of each pile warp thread between the loops of any pair of loops, however, are bound into the fabric only by a single filling thread 4. Hence when the uncut loop 6 is pulled out, the leg 10 will remain anchored into the body of the fabric, while the leg 11 will be drawn out thereby withdrawing the cut end 7 from the fabric. This operation will produce the long pile ends 9 shown in Fig. 4:. These long pile ends are formed from the entire uncut loops 6 and approximately half of the cut loops 5, while the short pile ends 8 are formed by half the out loops 5. The long pile ends 9 will, therefore, be approximately three times as long as the short pile ends 8. Any desired number of the loops 6 can be thus pulled out, depending on the number of long pile ends 9 desired.

While the cutting of certain of the loops and the pulling out of the uncut loops may be accomplished by any desirable means without departing from the invention, yet these operations may conveniently be done in connection with the operations of a pile wire loom so that a fabric with a long pile, such as shown in Fig. 4 can be produced directly on the pile wire loom. To accomplish this, I propose to use in the pile wire loom a set of knife wires for cutting the desired loops and a set of hook wires which operate to pull out the uncut loops, as above described. In Fig. 1 I have indicated the knife wires at 12 and the hook wires at 13. These wires are shown as introduced in every third shed so that there will be. two filling threads 4: between each two adjacent pile wires, all as usual in the operation of weaving with a pile wire loom. Each knife wire 12 is shown as having the usual knife 14 on its end by which the pile loops are cut as the wire is withdrawn, and each hook wire 13 is shown as having a hook 15 on its end. The weaving and the insertion of the pile wires are performed in such a way that the loops 5 of each pair of pile loops will be formed over a knife wire 12, while the loops 6 of each pair will be formed over a hook wire 13. lVhen each knife wire is withdrawn the knife 1a thereon will cut the loops 5 which are formed over said knife wire and when the hook wire 13 is withdrawn the hook 15 thereof will engagethe uncut loop 6 and the withdrawing movement of the hook wire will draw out the loop'6 thereby to withdraw from the body of the fabric the leg 7 of the cut loop 5.

IVhere the invention is thus practised in connection with a pile wire loom I propose to introduce the knife wires-and hook wires alternately, as shown in Fig. 1 and also propose to arrange the pile warp threads in pairs so that there will be two pile warp threads 2 and 3 adjacent each other and the pairs of pile warp threads will be separated by several body warp threads. \Vith this arrangement the pile warp thread 2 of any pair will be manipulated so as to form a pair of pile loops 5 and 6 over two adjacent pile wires 12 and 13, and the other pile warp thread 3 will be manipulated so-as to form therein another pair of pile loops 5 and 6 over the next two pile wires 12 and 13. With this arrangement each pile warp thread 2 of a pair will be bound into the fabric by a plurality of filling threads at the point where the pair of pile loops of the other warp thread 3 is situated.

Although I have illustrated in the drawings and have herein described a pile fabric in which the pile loops are formed from pile warp threads, yet my invention is not limited to a pile fabric of this type, as so far as the method is concerned, the pile loops might be formed in any of the threads of the fabric. Furthermore, while I have above described the invention as it might be carried out in connection with the operations of a pile wire loom, yet I do not wish to be limited in this respect.

I claim:

1. The method of making a pile fabric which consists in manipulating pile warp threads so as to form pile loops therein in any usual way, cutting certain of the pile loops, and then pulling out the loops adjacent the cut loops thereby to withdraw one leg of each cut loop from the body of the fabric.

2. The method of producing a pile fabric which consists in manipulating the pile warp threads so as to form pile loops in pairs, cutting one loop of each pair, and then drawing out the other loop of each pair so as to withdraw from the body of the fabric one of the legs of the cut loop and to produce a long cut pile which is formed from the uncut loop and part of the cut loop.

3. The method of weaving pile fabrics which consists in manipulating the pile warp threads so as to form in each warp thread a plurality of pairs of pile loops with the loops of each pile separated by a single pick, cutting one loop of each pair, and then drawing out the other loop of each pair so as to withdraw from the fabric one end of the cut HERBERT J. HOPE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. 0.- 

